CN201166370Y - Continuous casting torch - Google Patents

Abstract

A continuous casting cutting torch, comprising a cap head, a cutting nozzle seat and a torch body, one end of the cutting nozzle seat is inserted into the torch body and fixedly connected with the torch body, the middle part of the cutting nozzle seat is an axially hollow cutting nozzle cavity, the cutting There are gas holes, cutting oxygen holes, preheating oxygen holes, water inlet holes and return water holes on the top of the nozzle seat. The cutting oxygen holes communicate with the hollow cutting nozzle cavity coaxially. The preheating oxygen channel communicates with the cutting nozzle cavity, and the torch cap head is connected with the lower part of the cutting nozzle cavity on the cutting nozzle seat through threads. , the annular cavity communicates with the water inlet hole and the water return hole above the cutting nozzle seat. When the continuous casting cutting torch of the utility model is in use, the continuous casting cutting nozzle is inserted into the cutting nozzle cavity on the cutting nozzle seat, and the continuous casting cutting nozzle can be fixed on the cutting nozzle seat through the gun cap head. Compared with the existing continuous casting torch, it has the characteristics of simple structure and convenient use, and at the same time, it can also achieve the energy-saving effect of saving gas and oxygen.

Description

Continuous casting torch

technical field

The utility model relates to a continuous casting torch used for flame cutting of steelmaking continuous casting slabs.

Background technique

The continuous casting torch is a special tool used in conjunction with the cutting nozzle when the continuous casting slab is flame-cut in the steelmaking industry. It is an intermediate that connects gas, oxygen and cooling water to the cutting nozzle. The existing continuous casting torch has a complex structure and is not very convenient to use.

Contents of the invention

The purpose of the utility model is to provide a continuous casting torch with simple structure and convenient use.

The continuous casting cutting torch of the present utility model includes a cap head, a cutting nozzle seat and a torch body, one end of the cutting nozzle seat is inserted into the torch body and fixedly connected with the torch body, and the middle part of the cutting nozzle seat is an axially hollow cutting nozzle cavity , there are two annular grooves in the cutting nozzle cavity, and there are gas holes, cutting oxygen holes, preheating oxygen holes, water inlet holes and return water holes above the cutting nozzle seat, and the cutting oxygen holes are coaxial with the hollow cutting nozzle cavity The gas hole and the preheating oxygen hole communicate with the cutting nozzle cavity through the gas channel, the preheating oxygen channel and the annular groove respectively. The lower part of the cavity is connected, the outer diameter of the middle part of the cutting nozzle seat is smaller than the outer diameter of both ends, the middle part of the cutting nozzle seat and the gun body form an annular cavity, and the annular cavity communicates with the water inlet hole and the water return hole above the cutting nozzle seat. The gas pipe, the cutting oxygen pipe, the preheating oxygen pipe, the water inlet pipe and the water outlet pipe are respectively connected with the gas hole, the cutting oxygen hole, the preheating oxygen hole, the water inlet hole and the water return hole.

When the continuous casting cutting torch of the utility model is in use, the continuous casting cutting nozzle is inserted into the cutting nozzle cavity on the cutting nozzle seat, and the continuous casting cutting nozzle can be fixed on the cutting nozzle seat through the cap head. Compared with the existing continuous casting torch, it has the characteristics of simple structure and convenient use, and at the same time, it can also achieve the energy-saving effect of saving gas and oxygen.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a sectional view of plane A-A in Fig. 1 .

Detailed ways

A continuous casting cutting torch, comprising a cap head 1, a cutting nozzle seat 2 and a torch body 12, one end of the cutting nozzle seat 2 is inserted into the torch body 12 and fixedly connected with the torch body 12, and the middle part of the cutting nozzle seat 2 is axial Hollow cutting nozzle chamber 9, two annular grooves 18, 19 are arranged in the cutting nozzle chamber 9, gas hole 8, cutting oxygen hole 10, preheating oxygen hole 5, water inlet hole 11 and The return water hole 6, the cutting oxygen hole 10 communicate with the hollow cutting nozzle cavity 9 coaxially, the gas hole 8 communicates with the cutting nozzle cavity 9 through the gas channel 7 and the annular groove 19, and the preheating oxygen hole 5 passes through the preheating oxygen channel 4 , the annular groove 18 communicates with the cutting nozzle cavity 9, the bottom of the cutting nozzle cavity 9 has an internal thread, the gun cap head 1 is connected with the cutting nozzle cavity 9 bottoms on the cutting nozzle seat 2 by threads, and the outer diameter of the cutting nozzle seat 2 middle part Smaller than the outer diameter of both ends, the middle part of the cutting nozzle seat 2 forms an annular cavity 3 with the gun body 12, and the annular cavity 3 communicates with the water inlet hole 11 and the return water hole 6 above the cutting nozzle seat 2, and the entire cutting torch can be heated by circulating water. , The cutting nozzle is cooled. Gas pipe 15, cutting oxygen pipe 17, preheating oxygen pipe 13, water inlet pipe 16, and water outlet pipe 14 are respectively connected with gas hole 8, cutting oxygen hole 10, preheating oxygen hole 5, water inlet hole 11, and return water hole 6 . The diameter of the water inlet hole 11 is 4-7mm, the diameter of the gas hole 8 is 2-4mm, the diameter of the cutting oxygen hole 10 is 3-7mm, the diameter of the preheating oxygen hole 5 is 2-5mm, and the diameter of the return hole 6 is 1mm. -3mm.

Claims (2)

1, a kind of continuous casting burning torch, comprise rifle cap head (1), the cutting torch seat (2) and the body of a gun (12), one end of cutting torch seat (2) is inserted in the body of a gun (12) affixed with the body of a gun (12), it is characterized in that: the middle part of cutting torch seat (2) is the cutting torch chamber (9) of axial hollow, have bipassage ring connected in star (18) in the cutting torch chamber (9), (19), cutting torch seat (2) top has fuel gas hole (8), cutting oxygen hole (10), preheating oxygen hole (5), inlet opening (11) and backwater hole (6), the cutting oxygen hole (10) and coaxial the communicating in cutting torch chamber (9) of hollow, fuel gas hole (8) is by combustion gas road (7), annular groove (19) communicates with cutting torch chamber (9), preheating oxygen hole (5) is by preheat oxygen passage (4), annular groove (18) communicates with cutting torch chamber (9), bottom, cutting torch chamber (9) has internal thread, rifle cap head (1) is connected with bottom, cutting torch chamber (9) on the cutting torch seat (2) by screw thread, the external diameter at cutting torch seat (2) middle part is less than the external diameter at two ends, cutting torch seat (2) middle part forms annular chamber (3) with the body of a gun (12), the inlet opening (11) of annular chamber (3) and cutting torch seat (2) top, backwater hole (6) communicates, Gas Pipe (15), cutting oxygen pipe (17), preheat oxygen pipe (13), water inlet pipe (16), outlet pipe (14) respectively with fuel gas hole (8), cutting oxygen hole (10), preheating oxygen hole (5), inlet opening (11), backwater hole (6) joins.

2, continuous casting burning torch according to claim 1, it is characterized in that: described inlet opening (11) diameter is 4-7mm, and fuel gas hole (8) diameter is 2-4mm, and cutting oxygen hole (10) diameter is 3-7mm, preheating oxygen hole (5) diameter is 2-5mm, and backwater hole (6) diameter is 1-3mm.

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